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For numbers 1 & 2, refer to the figure at the right
_1. CB and CA are tangents to circle O. If mZBOA = 160, then mZC = A. 20°
B. 40°C. 60°D . 80° 2. If mZBCO = 220, what is mZACO?
A. 11°
B. 22° C. 33° D. 440
__3. In the figure, if m PTA = 242°, what is mZPAL?
A. 45°
B. 53° C. 590 D. 760
4. Two secants GD and BL intersect at A. If m BG = 830 and m LD = 390, find mZGAB.
A. 500 B. 55° C. 61° D. 750
5. In the figure, if m MX = 54°, and mAX = 120°, what is mZN ?
A. 330 B. 45° C. 560 D.900
6. AC and AT are tangents to the circle with C and T as the points of tangency.
If AACT is an equilateral triangle, find m CT. !
A.180° B. 90° C. 70° D. 120°
__7. AC and AT are secants. If mZA = 23 °
and m CT = 66°, find m BM. A. 100
B. 20° C. 350
D.580
8. DB is a diameter of circle O. If the ratio
of DE:EB is 3:2, what is mZX ? A. 12°
B.150 C. 18° D. 24°
For numbers 9 & 10, refer to the figure at the right
_9. The measure of the central angle is 30° and the radius is 5 cm. What is the area of the sector ? A. 2.77 cm
B.2.80 cm2 C. 6.54 cm D. 12.5 cm?
_10. The area of a sector is 54 m2. If the central angle is 63', what is the radius of the sector? A. 9.8 m
B. 10.80 m C. 23.5 m D. 25 m
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